Results 41 to 50 of about 2,264,111 (240)
Breakup of diminutive Rayleigh jets [PDF]
, 2010 Discharging a liquid from a nozzle at sufficient large velocity leads to a continuous jet that due to capillary forces breaks up into droplets. Here we investigate the formation of microdroplets from the breakup of micron-sized jets with ultra high-speed
Detlef Lohse +7 more
core +3 more sources
Rough Surface Contact Modelling—A Review
Lubricants, 2022 It has been shown experimentally that boundary friction is proportional to load (commonly known as Amontons’ law) for more than 500 years, and the fact that it holds true over many scales (from microns to kilometres, and from nano-Newtons to Mega-Newtons)
Robert Ian Taylor
doaj +1 more source
Weak-inertial flow between two rough surfaces [PDF]
, 2005 “Oseen–Poiseuille” equations are developed from an asymptotic formulation of the three-dimensional Navier–Stokes equations in order to study the influence of weak inertia on flows between rough surfaces.
Bergeon, Alain +2 more
core +3 more sources
Boundary lubrication: Dynamics of squeeze-out [PDF]
Physical Review E, 2001 The dynamics of the expulsion of the last liquid monolayer of molecules confined between two surfaces (measured recently for the first time) has been analyzed by solving the two-dimensional Navier-Stokes equation combined with kinetic Monte Carlo simulations. Instabilities in the boundary line of the expelled film were observed.
Zilberman, S. +4 more
openaire +4 more sources
Influence of Succinimide Dispersants on Film Formation, Friction and Antiwear Properties of Zinc Dialkyl Dithiophosphate [PDF]
, 2012 ZDDP (zinc dialkyldithiophosphate) is arguably the most successful antiwear additive ever employed in crankcase engine lubricants. It was originally used as an antioxidant and shortly afterwards recognized for its antiwear and extreme pressure ...
Zhang, Jie, Zhang, Jie
core +1 more source
FrictionSurface moisture or humidity impacting the lubrication property is a ubiquitous phenomenon in tribological systems, which is demonstrated by a combination of molecular dynamics (MD) simulation and experiment for the organic friction modifier (OFM ...
Xiaobin Yi +7 more
semanticscholar +1 more source
Tribology Online, 2008 The effects of metals such as cobalt (Co), cerium (Ce), magnesium (Mg), nickel (Ni) and titanium (Ti) added to diamond-like carbon (DLC) films on boundary lubrication properties were investigated using a ball-on disk tribometer.
Shojiro Miyake +6 more
doaj +1 more source
Steady streaming confined between three-dimensional wavy surfaces [PDF]
, 2010 We present a theoretical and numerical study of three-dimensional pulsatile confined flow between two rigid horizontal surfaces separated by an average gap h, and having three-dimensional wavy shapes with arbitrary amplitude σ h where σ ∼ O(1), but long ...
Bergeon, Alain +2 more
core +3 more sources
Binding and lubrication of biomimetic boundary lubricants on articular cartilage [PDF]
Journal of Orthopaedic Research, 2016 ABSTRACTThe glycoprotein, lubricin, is the primary boundary lubricant of articular cartilage and has been shown to prevent cartilage damage after joint injury. In this study, a library of eight bottle‐brush copolymers were synthesized to mimic the structure and function of lubricin.
Kirk J, Samaroo +3 more
openaire +2 more sources
Shock and Vibration, 2021 In order to identify different lubrication states, lubrication experiments were carried out on a Bruker UMT-3 tester. The experimental results show that the frequency band energy characteristics of friction vibration signals are different under different
Hai-jie Yu +5 more
doaj +1 more source